It can go either way---the way it's set up, Roller already dislikes and is fighting the corrupt Autobots.

Plus, out of all these bots in Pax's crew, one of them ratted them out at the end of Shadowplay and we still don't know who it is.

Or Roller could be deep undercover to infiltrate the Decepticons, and maybe gets carried away.

One thing I'm thinking off is that Orion's crew are working with Zeta [at the time still charismatic and not crazy]. It would explain how they go from outlaw miscasts when Sentinel was a Prime to proper police officers again under Zeta Prime.